This item is for eight (8) .040-in. over bore Speed Pro (Sealed Power) forged 16.8cc dome pistons for Chevrolet 427ci big block V-8 engines. P/N (8) L2300NF-040. These pistons are Speed Pro's version of the 1965-1969 427-335/390HP pistons. Feel free to message us with any fitment questions.
Speed Pro forged pistons are made from extruded VMS-75 aluminum alloy that is forged under 3,000 tons of pressure to "near-net" shape. After that, they are machined to their final configuration. These pistons offer excellent strength and durability and are capable of taking the punishment that is dished out on the street and in competition.
PISTON SPECIFICATIONS
- Bore: 4.290 in. (at .040 bore)
- Stroke: 3.766 in. (stock)
- Connecting Rod Length: 6.135 in. (stock); rods NOT included
- Piston Top Style: Dome with 1-valve reliefs
- Piston Head Volume: -16.80cc
- Piston Dome Height: .140 in.
- Compression Height: 1.767 in.
- Piston Material: Forged aluminum
- Wrist Pin Diameter: .989 in.; pins included
- Wrist Pin Style: Press-fit only
- Ring Land Sizes: 5/64-5/64-3/16 (oil ring); rings NOT included
- Notes: DurOshield coated skirts; closed chamber heads
- Usage: Street and mild strip; up to 150HP nitrous
- RPM Range: Idle - 6,500
- Compression Ratio (approximate): 10.11:1 w/100.9cc; 9.37:1 w/109.4cc; 8.36:1 w/124cc
We offer some of the quickest delivery times to most of the US on eBay. We have locations in Alabama, Louisiana, and Tennessee. These locations allow us to offer our customers quick, efficient service and delivery times. The free shipping option is available for some orders shipped within the lower 48 US-states.
Falcon Performance specializes in shipments to Sweden, Germany, Australia, Norway, Denmark, France, United Kingdom, Iceland, South Africa, New Zealand, Japan, Canada, and many other countries. Please use the shipping calculator for orders outside the continental USA. We do combine shipping costs for purchasing multiple items. Before paying, add all desired items to your eBay cart and then pay for all at one time. The eBay system will calculate the combined shipping discount.
Please note that "free shipping" is not free for us but only to you. We pay to ship all parts to customers. Should you decide to return your purchase due to 'buyers remorse', we will refund the parts price less a restocking fee for the return; to mostly recoup our original shipping costs. Any damage to box or parts will alter the amount of the restocking fee. In many cases, we must buy new boxes from our suppliers.
Put our 75+ combined years of experience to work for you... Thank you, the Falcon Team!